CVE-2023-53715
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex Apparently the hex passphrase mechanism does not work on newer chips/firmware (e.g. BCM4387). It seems there was a simple way of passing it in binary all along, so use that and avoid the hexification. OpenBSD has been doing it like this from the beginning, so this should work on all chips. Also clear the structure before setting the PMK. This was leaking uninitialized stack contents to the device.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-10-22 14:15:46.140000
Last modified
2026-10-28 19:10:00.193000
View original CVE JSON
{
"id": "CVE-2023-53715",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-10-22T14:15:46.140",
"lastModified": "2026-10-28T19:10:00.193",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: cfg80211: Pass the PMK in binary instead of hex\n\nApparently the hex passphrase mechanism does not work on newer\nchips/firmware (e.g. BCM4387). It seems there was a simple way of\npassing it in binary all along, so use that and avoid the hexification.\n\nOpenBSD has been doing it like this from the beginning, so this should\nwork on all chips.\n\nAlso clear the structure before setting the PMK. This was leaking\nuninitialized stack contents to the device."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: brcmfmac: cfg80211: Pasar el PMK en binario en lugar de hexadecimal\n\nAparentemente, el mecanismo de frase de contraseña hexadecimal no funciona en chips/firmware más nuevos (por ejemplo, BCM4387). Parece que siempre hubo una forma sencilla de pasarlo en binario, así que usa eso y evita la hexificación.\n\nOpenBSD lo ha estado haciendo así desde el principio, por lo que esto debería funcionar en todos los chips.\n\nTambién limpia la estructura antes de establecer el PMK. Esto estaba filtrando contenido de pila no inicializado al dispositivo."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
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"lessThan": "1687845eb8f37360a9ee849a3587ab659b090773",
"versionType": "git",
"status": "affected"
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "4.13",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.13",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "4.14.316",
"lessThanOrEqual": "4.14.*",
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"status": "unaffected"
},
{
"version": "4.19.284",
"lessThanOrEqual": "4.19.*",
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},
{
"version": "5.4.244",
"lessThanOrEqual": "5.4.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.181",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.113",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.30",
"lessThanOrEqual": "6.1.*",
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"status": "unaffected"
},
{
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"lessThanOrEqual": "6.3.*",
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},
{
"version": "6.4",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
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"url": "https://git.kernel.org/stable/c/1687845eb8f37360a9ee849a3587ab659b090773",
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}